Results 1 to 10 of about 648,616 (167)

Cluster analysis of karyotype similarity coefficients in Epimedium (Berberidaceae): insights in the systematics and evolution [PDF]

open access: yesPhytoKeys, 2020
In order to evaluate the genome evolution and systematics, karyotype analysis of mitotic metaphase chromosomes in 51 taxa of Epimedium and two species of Vancouveria was conducted.
Lin-Jiao Wang   +3 more
doaj   +3 more sources

Changes in land use are associated with the accumulation of soil phytolith-occluded organic carbon

open access: yesEcological Indicators, 2023
Organic carbon occluded in phytoliths is extremely stable and plays important roles in long-term preservation of soil and stable carbon sequestration in terrestrial ecosystems.
Linjiao Wang, Ke Wang, Maoyin Sheng
doaj   +1 more source

The word pearl in Russian poetry and its Chinese roots

open access: yesНеофилология, 2021
The object of the analysis is the word pearl in the Russian language. The subject of the study is to consider the functioning of this lexeme in Russian poetry. The analysis uses descriptive, comparative, and stylistic methods. The word pearl was borrowed
Jiatong Weng
doaj   +1 more source

Aerodynamic characteristics and load of aerostats during flight [PDF]

open access: yesTehnika, 2015
Together with increased interest for aircraft type like aerostats, there is a specific need to study and describe the aerodynamics of the aerostat, experimentally as well as analytically and theoretically.
Janković Aleksandar M.   +2 more
doaj   +1 more source

Derivators, pointed derivators and stable derivators [PDF]

open access: yesAlgebraic & Geometric Topology, 2013
We develop some aspects of the theory of derivators, pointed derivators, and stable derivators. As a main result, we show that the values of a stable derivator can be canonically endowed with the structure of a triangulated category. Moreover, the functors belonging to the stable derivator can be turned into exact functors with respect to these ...
openaire   +5 more sources

PECULIARITY OF CULTIVATION OF COULIFLOWER AND BROCCOLI IN EDAPHIC-CLIMATIC ZONE OF PLAIN, PIEDMONT, AND MOUNTAIN PROVINCES OF DAGESTAN

open access: yesОвощи России, 2015
Results of the study of possibility of cultivation of cauliflower and broccoli in the context of vertical zonality of Dagestan are presented. Physiological  characteristics, agriculture, and cultivation of early maturing varieties of cauliflower and ...
Ye. G. Gadjimustapaeva, G. G. Rabadanov
doaj   +1 more source

The tests of the belonging of functions to the classes Fn(D) and Qn(D)

open access: yesLietuvos Matematikos Rinkinys, 2021
In the work with the aid of the divided and finite differences are introduced classes Fn(D) and Qn(D) of functions holomorphic in region D. Different properties of functions from these classes are studied, the tests of the belonging of functions to the ...
Jevgenijus Kirjatskis   +1 more
doaj   +1 more source

On bilateral derivates and the derivative [PDF]

open access: yesTransactions of the American Mathematical Society, 1975
In this paper we prove a new result on the monotonicity of a function in terms of its bilateral derivates, and obtain from it extensions of several existing results on such derivates and the derivative of a function. Let
openaire   +1 more source

Genetic Algorithm Captured the Informative Bands for Partial Least Squares Regression Better on Retrieving Leaf Nitrogen from Hyperspectral Reflectance

open access: yesRemote Sensing, 2022
Nitrogen is a major nutrient regulating the physiological processes of plants. Although various partial least squares regression (PLSR) models have been proposed to estimate the leaf nitrogen content (LNC) from hyperspectral data with good accuracies ...
Jia Jin   +3 more
doaj   +1 more source

[Creatinine] can change in an unexpected direction due to the volume change rate that interacts with kinetic GFR: Potentially positive paradox

open access: yesPhysiological Reports, 2022
[Creatinine] was proved to change in the opposite direction of the kinetic GFR (GFRK), but does the [creatinine] also change in the opposite direction of the volume rate?
Sheldon Chen, Robert Chiaramonte
doaj   +1 more source

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